Question

(v) Smoking is said to be the main of heart disease
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Answer 1

Explanation:

Smoking is a major risk factor for ischemic heart disease, a condition in which plaque builds up inside the coronary arteries. These arteries supply your heart muscle with oxygen-rich blood. When plaque builds up in the arteries, the condition is called atherosclerosis.

Answer 2

Answer:

no

Explanation:

It is the main cause of liver and lungs disease